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Finding the Fourth Proportional to 51,044.80, 70,437.72 and 29,821.72

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Solution

The fourth proportional to 51,044.80, 70,437.72 and 29,821.72 is: 41,151.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,044.80 : 70,437.72 = 29,821.72 : x
  2. Step 2: Convert to fraction form
    51,044.80/70,437.72 = 29,821.72/x
  3. Step 3: Cross multiply
    51,044.80x = 70,437.72 × 29,821.72
  4. Step 4: Simplify right side
    51,044.80x = 2,100,573,963.28
  5. Step 5: Solve for x
    x = 2,100,573,963.28/51,044.80
  6. Step 6: Final answer
    x = 41,151.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.